{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219358",
    "entityType": "User",
    "nonce": "0xda266987ce3e70aba51b71b71bf73ee6280a99c6650aeaae31d8c60504e6e065",
    "signature": "0xa2e2b2f7c8a2f0a7306508db22ef21cdc644d39fbf47b58842c1fa3c91ff4921601b649305754e7d4ea62191a54d2b85fabf573a482556fa5f0e335ea56d17261b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}