{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbb8b5d0385cea6751c07b8985b9105a3e3c05547a0ad23ee11da1ef8692b0597",
    "signature": "0x3f248ff19ded83a2c4ecb4b4276571ca58c97f71c59d61ff98f25821a3289ecd09347c8336b62c7c1db7b6a95611080c1cd428499c2b4418523ff3c5f2d30b361b",
    "signer": "0xCA0F92aBEF92e3205D73aA15202bbBf291F9dC09",
    "userId": "178890283"
  }
}