{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc791fe42e0242283e62854dceee10195db1f8668b69a0c0fffd086981d0b2176",
    "signature": "0x4fa7c883a5ebeea4e4859bc09991b5af4f2e7f091f803a52168b4b3abfe178c4734a072c1aca88d8a96e83ce0fb02e6e8c960598ab26016b335b323c8bac51a71c",
    "signer": "0x200bde37e1742bbDD4Fc1D298018EFaD7448754e",
    "userId": "372725089"
  }
}