{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987917950",
    "entityType": "User",
    "nonce": "0xe2a80fbb0107043784987085e55207c48887020b1c3935c6dd4b1f558944c9ec",
    "signature": "0x0dd39fcbcd781bb91fd5f125ad3f03f5716faacc18c5b333ef3449035c179f3a00d75bf14df2d2cae2e8733f8b4c9b8c3a2aa583f11b09e3e11c3f90655d046f1b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}