{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357225773",
    "entityType": "User",
    "nonce": "0x45ff3df99eac1f272e52c1ca30f938025b42a587d67c71af4686f9a73d6d2e29",
    "signature": "0x755eceda01fe3ddd16b1de2d6be528d970e62046d4732b1ba50b0d35c5243ce668f6f9ce513c1f2422e4996634fef652bdf6ebdb4cf87441ee6b0ff37016d7fe1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}