{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199337",
    "entityType": "User",
    "nonce": "0x13edfcf8462b2ec8ef536598013b3680246f3a2f9b9508748b0df6d6033ff532",
    "signature": "0x49a1ebcce9cf7a8c6630d8f33cc781963ccded77175b6de7a7b90ea19b6de3d864fe53982ad9e9103c32837e6b83f4538598f99ad4109348158f93608d844ad61c",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}