{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6bdb397545e7f52d6c7b5268ee9393d8e806514d607c6a128d4345500a9423c9",
    "signature": "0x6d7f6628469e641538bf38db97f16532aea85a6264649faef1abe765bbbc5beb10dc59417f74a67b30c718a8ae818faf02c6e991014aec283f2ead163bf643661b",
    "signer": "0x1E4E69EE53DedC03Cc02C5Eec88575A30605d486",
    "userId": "914708558"
  }
}