{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151",
    "entityType": "User",
    "nonce": "0x11583e1512fd4a29e5df3b2159847b9b71354a786c2ec4e9eef82a414c1af21d",
    "signature": "0x2d8bbb12869e74a2da0b8d8dd36cb9d5131d82773b4a368d701da85a066055f87cb7fe8a30457e885a1d352fcc458cd511a46cba57567779e5ce843f47b571fa1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}