{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48839",
    "entityType": "User",
    "nonce": "0xaf559d50ac25bd41328cb42169a66abb3ec01998ca0e45befb17c6baf3bbc544",
    "signature": "0x10c98d77aa5c101ac189d226a228b9961ecc1539f53b724a92a237ca9e7cf4a829df0d074e14a514c1129c68616e0f4c1db6cdd58dcaf18c36229e9ca1e531b21b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}