{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1139109",
    "entityType": "User",
    "nonce": "0xad9e89d083a6b3936bf361e2c55336affa5dfb64d7088d47061a1685d82ddfd6",
    "signature": "0xbcd622719e2782093cb731abd6c228af77a3bad66fd85ca3a40b6990682cc71840476a354883acf2b8f8cb59f80c7b83e888cf95978dfc305f98ef4d11d9a2481c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}